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help > RE: Inconsistency between the linux and widows OS in covarites regression
Apr 29, 2020 11:04 PM | Alfonso Nieto-Castanon - Boston University
RE: Inconsistency between the linux and widows OS in covarites regression
Hi Hongru
That level of differences is way above what is typically observed when comparing the same analyses across different operating systems or Matlab versions. If you could please share the two conn_*.mat files I will be happy to take a quick look to see if I find any potential reason for those very larger differences
Best
Alfonso
Originally posted by Hongru Zhu:
That level of differences is way above what is typically observed when comparing the same analyses across different operating systems or Matlab versions. If you could please share the two conn_*.mat files I will be happy to take a quick look to see if I find any potential reason for those very larger differences
Best
Alfonso
Originally posted by Hongru Zhu:
Hi there,
I did same analysis in different OS with same data from fmriprep (imported from fmriprep). The latest conn are used in the both OS. But I found after I abstracted the fisher-z FC in these two OS are slight different.
So I also checked the time series after regression by the latest conn, and I found the value of each voxel is also slightly different even though the general image looks similar.
Lastly, I selected one subject, and did a correlation analysis between fisher z FC from linux and windows. I found that the correlation between these two OS is around 0.71. While I also did a correlation between the FC regressed GSR and NonGSR, I found within the same OS, the correlation between GSR and NonGSR are around 0.988, but across OS are still around 0.71.
I am wondering that is this inconsistency acceptable? Or what causes this inconsistency. I should also indicate that I used a different version Matlab. (linux: Matlab R2016a; windows: Matlab R2017b)
BS. I included 86 subjects in linux, while first 44 subjects in windows.
Thanks
Hongru
I did same analysis in different OS with same data from fmriprep (imported from fmriprep). The latest conn are used in the both OS. But I found after I abstracted the fisher-z FC in these two OS are slight different.
So I also checked the time series after regression by the latest conn, and I found the value of each voxel is also slightly different even though the general image looks similar.
Lastly, I selected one subject, and did a correlation analysis between fisher z FC from linux and windows. I found that the correlation between these two OS is around 0.71. While I also did a correlation between the FC regressed GSR and NonGSR, I found within the same OS, the correlation between GSR and NonGSR are around 0.988, but across OS are still around 0.71.
I am wondering that is this inconsistency acceptable? Or what causes this inconsistency. I should also indicate that I used a different version Matlab. (linux: Matlab R2016a; windows: Matlab R2017b)
BS. I included 86 subjects in linux, while first 44 subjects in windows.
Thanks
Hongru
Threaded View
| Title | Author | Date |
|---|---|---|
| Hongru Zhu | Apr 23, 2020 | |
| Alfonso Nieto-Castanon | Apr 29, 2020 | |